"Sun, 19 May 2024 10:51:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
10:51:19
General datetime
2024-05-19 10:51:19Z
For Database
2024-05-19 10:51:19
For HTTP1.1
Sun, 19 May 2024 10:51:19 GMT